In sexological practice, there is a need to correlate the intensity of the sexual life of an individual who sought help, not only with his age, but also with objective parameters that determine his potential sexual activity. Thanks to the research G.S. Vasilchenko (1970), in domestic sexology, the idea was formed that the sexual manifestations of a particular subject depend largely on the type of his functional and energetic response, which is due to his constitutional, biological characteristics.

Sexual constitution – a set of stable biological properties of the organism, formed under the influence of heredity and conditions of development in the prenatal period and early childhood. It determines the individual level of sexual needs, the limit of sexual activity and the resistance of the sexual sphere to pathogenic influences. It is one of the aspects of the general constitution of a person and determines the intensity of sexual manifestations, that is, the sexual temperament. The individual stability of sexual function to the negative effects of a number of factors (severe stress, intoxication, a number of diseases, etc.) depends on the sexual constitution. Sexual disorders with a strong sexual constitution can occur only under the influence of powerful damaging factors that have a long-lasting effect on various links in the sexual sphere. With low parameters of the sexual constitution, even a weak adverse effect can trigger the development of sexual dysfunction. The influence of the sexual constitution explains the lack of a direct relationship between prescription and the severity of diseases such as alcohol dependence, chronic prostatitis, etc., and the presence or absence of sexual dysfunctions. The definition of a sexual constitution can be useful for assessing the sexual manifestations of a particular person, distinguishing between their pathological decrease or increase and individual norms, and for developing hygienic recommendations when choosing a sex mode. For this purpose, the scale of the vector definition of the sexual constitution in men is used, which was developed and first tested by Professor G.S. Vasilchenko (1970). Later, a similar scale for women was proposed by his employee I.L. Botnevoy.

The scale of the vector definition of the sexual constitution of men (see table 1.1) provides for the inclusion of seven indicators. When it is used, the initial indices for each of the 7 indicators are determined (the indices are determined by the VI and VII vectors only for men who have regular sex life for several years). Then the arithmetic average is calculated and the overall (phenotypic) indicator of the sexual constitution of the subject is obtained: 1 (1 – 1.5) – extremely weak; 2 (1.6 – 2.5) – very weak; 3 (2.6 – 3.5) – weak; 4 (3.6 – 4.5) – a somewhat weakened version of the average; 5 (4.6 – 5.5) – medium; 6 (5.6 – 6.5) – a strong variant of the average; 7 (6.6 – 7.5) – strong; 8 (7.6 – 8.5) – very strong; 9 (8,6 – 9) – extremely strong. All the indicators that make up the scale can be divided into two different groups. The first four indicators of the scale (age of awakening of libido, age of first ejaculation, trochanter index, and pubic body hair character) reflect the processes occurring during puberty, and they remain unchanged in the future. Therefore, the arithmetic average of indicators I – IV characterizes the genotypic index of the sexual constitution (Kg).

This is its most stable part, which is determined by the action of internal factors and characterizes the initial state of the neuroendocrine provision of the sexual sphere. A uniform decrease in all four indicators and Cg <3.5 indicate a delay in pubertal development. Indicators V-VII – the maximum kurtosis, the time of entry into the conditional-physiological rhythm (UVR) after marriage and the absolute age of transition to UVR (2-3 intercourses per week), although related to the genotype, largely depend on the personal, partner situational factors. Their arithmetic average – the index of sexual activity (Ka) – reflects the degree to which a man implements the constitutional genetic parameters (energy potential) of his own sexuality. Genotype and sexual activity of men are interrelated. On the one hand, the frequency of intimate contacts is largely determined by his sexual temperament (sexual constitution), on the other hand, the level of sexual activity affects the functional state of the male sexual sphere. According to the observations of sexologists, the best for the male sexual function is the mode of the closest match between sexual activity and its constitutional possibilities (the ratio of Ka / Kg indices approaches one). The less favorable is the regime of excess of activity and the most unfavorable is the regime lying below the level of constitutional indicators.

The scale of the vector definition of the sexual constitution of women (see Table 1. 2) was developed by analogy with the above scale for men (I.L. Botneva, 1983). Genotype – the most stable part of the sexual constitution, independent of parenting or partner, is determined by the first 4 indicators: menarche age, regular menstruation, genital function (timing of first pregnancy and the nature of its course), trochanter index, type of hair growth pubis When determining the genotypic index (Kg), the arithmetic average of the indicators of the I – IV scale is calculated. In women, some indicators “spread out” on a scale, for example, the character of hair distribution of pubis A3P3 takes 3 columns, so its digital value is determined by a graph that is closer to other indicators. The indicator of the level of sexuality is determined by the age of awakening of erotic libido, the time of the first orgasm and the percentage of orgasm (arithmetic average of indicators V – VII).

Erotic libido depends mainly on the state of the neuroendocrine system of the woman, in particular, ovarian function. The remaining indicators, although determined by the hormonal status, are more dependent on the upbringing, psychological and behavioral characteristics of the woman, her individual experience, sexual partner, etc. It is believed that if the genotype and sexuality indicators are close, the development of sexuality is harmonious, corresponding sexual constitution. If a single indicator is “knocked out” from the scale or there is a wide variation between several indicators, then the proposed pathology can be determined by the nature of the variation. It should be noted that at present among the majority of domestic sexologists, including the author of the scale, the prevailing view is that the indicators obtained reflect quite well the biological component of female sexuality and the state of the female reproductive sphere. However, due to the greater influence of various psychological factors on female sexuality, the parameters of the scale often do not give an adequate idea of ​​the individual level of the sexual needs of a woman and the optimal sexual activity for her.

Note: P – hair growth of the pubis, A – increased hair growth: absent (with hormonal deficiency) – A0R0; stopped at pubertal type (single straight hair) – A1P1; thicker and longer hair on the central part of the pubis – A2P2; by female type (pubis and large labia are covered with curly hair with a horizontal upper line) – A3P3; with increased androgenic saturation – a tendency to male type hair growth (hair on the white line of the abdomen spread to the navel), sometimes with hypertrichosis (hirsutism). In menopause, the hair straightens, thinns out and gradually almost disappears.